摘要
目的获得17个Y染色体短串联重复序列(Y-STR)基因座在成都汉族人群中的群体遗传学数据。方法应用AmpFlSTRYfilerTM荧光标记复合扩增系统,对成都地区111名无关男性个体血样进行17个Y-STR基因座的复合扩增,用ABI3130遗传分析仪对扩增产物进行检测分析。结果DYS456、DYS389Ⅰ、DYS390、DYS389Ⅱ、DYS458、DYS19、DYS385a/b、DYS393、DYS391、DYS439、DYS635、DYS392、Y-GATA-H4、DYS437、DYS438、DYS448基因座在成都地区汉族群体分别检出3～8个等位基因,DYS385a/b检出36个等位基因组,各基因座基因多样性最低为0.3970(DYS391),最高为0.9561(DYS385a/b)。检测16例女性血样和7种动物血样,17个Y-STR基因座均无扩增产物。另对20个二代父性家系调查显示同一家系成员17个Y-STR基因座单倍型一致,未观察到基因突变。结论上述17个Y-STR基因座构成的单倍型在成都人群中具有较高的遗传多态性,适用于法医个体识别和亲权鉴定、遗传学及人类学的相关研究。
Objective To obtain the population genetic data of 17 Y-chromosomal short tandem repeat （Y-STR） in the Han population in Chengdu of Sichuan Province. Methods The 17 Y-STR loci were amplified from the blood samples of 111 unrelated Chengdu Han individuals using the AmpF1STR Yfiler^TM system. The PCR products were genotyped with an ABI 3130 genetic analyzer. Results In the loci of in DYS456, DYS389I, DYS390, DYS389II, DYS458, DYS19, DYS385a/b, DYS393, DYS391, DYS439, DYS635, DYS392, Y-GATA-H4, DYS437, DYS438, and DYS448, 3 to 8 alleles were detected in the Han population in Chengdu, and 36 alleles were detected in the locus DYS385a/b, with the minimal gene diversity （GD） value of 0.3970 （DYS391） and maximal value of 0.9561 （DYS385a/b）. The DNA samples of 16 women and 7 different species of animals were amplified, but no specific products were found for the 17 Y-STR loci. No mutations of the 17 Y-STR alleles were observed in 20 father-son pairs as confirmed by autosomal STR analysis. Conclusion The 17 Y-STR loci are highly polymorphic and are suitable for personal identification, paternity testing, population genetics and anthropology studies.
出处
《南方医科大学学报》
CAS
CSCD
北大核心
2009年第10期1973-1976,1981,共5页
Journal of Southern Medical University
基金
国家自然科学基金(30871117)~~
